[Haskell-cafe] heap lifetime question

[Galchin, Vasili]

If I am correct, I cannot associate a ForeignPtr with alloca or allocaBytes
object via "newForeignPtr" because the alloca/allocaBytes heap object will
be GC'd when I leave the function that allocated this object/. I.e. if I
have a heap object that I want to live beyond a function invocation, I must
be very careful in coding....

Vasili

On Thu, Aug 7, 2008 at 12:30 AM, Galchin, Vasili <vigalchin at gmail.com>wrote:

> so Bulat ..
>
>      You seem to be saying what I suspect ... i.e. if an allocaBytes call
> is inside a function, when the function is exited then the said heap object
> is GC'd??
>
> Regards, Vasili
>
>
>
> On Thu, Aug 7, 2008 at 12:25 AM, Bulat Ziganshin <
> bulat.ziganshin at gmail.com> wrote:
>
>> Hello Vasili,
>>
>> Thursday, August 7, 2008, 9:13:43 AM, you wrote:
>>
>> >     What is the lifetime of various heap objects ... e.g. created by
>> allocaBytes, alloca, etc?
>>
>> alloca/allocaBytes just mimicks stack allocation but actually allocates
>> buffer in usual heap. this buffer lives while references to it exists
>>
>> on practice, it's usually gc'ed by next minor GC
>>
>> --
>> Best regards,
>>  Bulat                            mailto:Bulat.Ziganshin at gmail.com
>>
>>
>
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